Some interesting details on the McLaren’s hybrid drivetrain. The P1 has a few methods to charge it’s batteries, not only does it have electric motor regenerative braking similar to the Tesla Model S, it can also charge the batteries while driving normally using power from the gasoline engine. When driving around town, or at the track, if you’re not at 100% throttle, part of the engines power above what is required for the current driving situation is used to generate power and charge the batteries. Of course you can also plug the car into a regular 110 volt outlet to charge up the batteries when you’re not driving. McLaren actually recommends plugging in the car so it can trickle charge when parked or stored.

Their engineers state that the car can continually lap a race track and not run out of battery power. The car can also drive around 11-15 miles without using the gasoline engine at all. Special thanks to The Collection for having for the showing, take a look at the pictures and video of the P1 starting up and revving a bit below.